@article{ref1,
title="Suicide as a cause of death in patients with endogenous affective disorders",
journal="Psychiatria Polska",
year="1980",
author="Bogdanowicz, E. and Kalinowski, A. and Puzyński, S.",
volume="14",
number="1",
pages="29-36",
abstract="<p>[Abstract unavailable]</p> <p>Language: pl</p>",
language="pl",
issn="0033-2674",
doi="",
url="http://dx.doi.org/"
}